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| PartNumber | DS1338Z-3+T\u0026R | DS1338Z-3+T | DS1338Z-3+TR |
| Description | Real Time Clock I2C Serial RTC w/56 Byte NV RAM | ||
| Manufacturer | Maxim Integrated | Maxim Integrated | - |
| Product Category | Real Time Clock | Clock/Timing - Real Time Clocks | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOIC-8 | - | - |
| RTC Bus Interface | Serial | Serial | - |
| Time Format | HH:MM:SS | HH:MM:SS (12/24 hr) | - |
| RTC Memory Size | 56 B | 56 B | - |
| Supply Voltage Max | 3.3 V | - | - |
| Supply Voltage Min | 2.7 V | - | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Tape & Reel (TR) Alternate Packaging | - |
| Function | Calendar, Clock | Calendar Clock | - |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1338Z | DS1338Z | - |
| Brand | Maxim Integrated | - | - |
| Product Type | Real Time Clock | - | - |
| Factory Pack Quantity | 2500 | - | - |
| Subcategory | Clock & Timer ICs | - | - |
| Part # Aliases | 90-1338Z+3TR DS1338Z | 90-1338Z+3TR DS1338Z | - |
| Unit Weight | 0.019048 oz | 0.019048 oz | - |
| Type | - | Clock/Calendar | - |
| Package Case | - | SOIC-8 | - |
| Operating Temperature | - | -40°C ~ 85°C | - |
| Mounting Type | - | Surface Mount | - |
| Features | - | Leap Year, NVSRAM, Square Wave Output | - |
| Interface | - | I2C, 2-Wire Serial | - |
| Voltage Supply | - | 2.7 V ~ 5.5 V | - |
| Supplier Device Package | - | 8-SOIC | - |
| Memory Size | - | 56B | - |
| Date Format | - | YY-MM-DD-dd | - |
| Voltage Supply Battery | - | 1.3 V ~ 3.7 V | - |
| Current Timekeeping Max | - | 200μA @ 3.3V | - |
| Supply Voltage Max | - | 3.3 V | - |
| Supply Voltage Min | - | 2.7 V | - |